SECTION 55 - ELECTRICAL SYSTEM
55-100
TESTING FUEL GAUGE IN DIAGNOSTIC MODE
Use a jumper wire and connect sender terminals, 1,
and the EIC board will light and beep. If the EIC board
lights and beeps, the EIC and circuit wires to the
sender are OK. If the EIC board fails to light, check
the wires to the EIC board.
If the fuel gauge is not working and the wiring and the
fuel sender are found to be good, the complete EIC
board will require replacement.
1
123
Op. 55 410 80
REMOVAL OF FUEL LEVEL SENDER
1. Support the boom on the boom lock pins.
2. Open the rear door and remove the left engine
side shield.
3. Disconnect the wires from the sender, 1.
4. Remove the sender retaining screws, 2, and
remove the sender, 3, assembly from the tank.
124
TESTING OF THE FUEL LEVEL SENDER
Using a volt/ohmmeter, put one lead on one terminal
and the second lead on the other terminal. Rotate the
sender from full tank to empty tank, and the ohms
reading should be between 35 ohms full and 240
ohms empty.
If the fuel gauge is not working and the wiring and the
fuel sender are found to be good, the complete EIC
board will require replacement.
125
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